What is the difference between first-generation and second-generation antihistamines?
First-generation antihistamines are older medications that often cause drowsiness and sedation as they can easily cross the blood-brain barrier. In contrast, second-generation antihistamines are newer, designed to minimize sedation and generally have fewer side effects, making them more suitable for daily use. Both types are effective in treating allergic reactions, but their differences in side effects can influence a person's choice of medication.
Key points:
- First-generation antihistamines can cause drowsiness.
- Second-generation antihistamines are less sedating.
- First-generation medications often have more side effects.
- Second-generation options are preferred for long-term use.
This text has been fact-checked for accuracy by medino's clinical team.